JPH02245934A - Data processor - Google Patents

Abstract

PURPOSE:To simplify control over a source program and an object program and to reduce the use quantity of a disk by providing a condition translation part for the source program as the object program. CONSTITUTION:Each source program containing the condition translation part is translated by a translating means (a) to generate a conditioned object program and a main object program. Then a coupling means (c) links the conditioned object program and main object program according to the condition indication of an indicating means (b) so that the resulting program corresponds to a specific target system, thus generating a load module. Therefore, the source program is translated once to generate the main object program and conditioned object and linkage processing according with the condition is only performed to shorten the time required for the load module generation. Consequently, the control over the source program and object program is simplified and the use quantity of the disk is reduced.

Description

[Detailed Description of the Invention] [Summary] An object of the present invention is to provide a data processing device that can reduce translation time, simplify management of source programs and object programs, and reduce disk usage. Then, for a plurality of source programs each having a conditional translation section whose translation is controlled by conditional assembly or conditional compilation, the conditional translation section is translated for each source program to generate a conditional object program, and the conditional object program is generated by translating the conditional translation section for each source program. a translation means for translating parts other than the translation part to generate a main object program; and an instruction means for instructing conditions for combining the conditional object program and the main object program translated by the translation means according to a predetermined target system. and a coupling means for coupling the conditional object program and the main object program to generate a load module corresponding to the target system based on a condition instruction from the instruction means.

[Industrial application field]

The present invention relates to a data processing device, and more particularly, to a data processing device that efficiently generates a load module in a computer system.

One of the things that greatly helps when thinking about computer systems is modularization. This idea is based on structural programming (s) in software development.
This method is similar to structured programming. That is, when developing one system, the system is constructed by dividing the work to be performed by the system into several functional parts (modules) in advance and assembling the functional modules. In the present invention, such a functional module is referred to as a load module.

Each functional module is developed individually as much as possible, depacked, and then combined to confirm system functionality. If the interface of each functional module is standardized, a functional module that has been debugged can be used in many other systems as a system component. A method of configuring a system by combining such functional modules is called a modular system configuration. By having a modular system configuration, it is possible to shorten the system development period and build a system that is highly expandable and flexible.

On the other hand, in recent years, efforts have been made to improve the efficiency of software development by creating efficient source programs and object programs, shortening translation and combination times, simplifying the management of created products, and increasing the use of disks for personal computers with limited disk space. There is a need to improve efficiency. Therefore, it is necessary to standardize source programs and object programs and minimize the time spent on creating load modules such as translation and combination processing.

Note that a source program is a program written in a high-level language, an object program is a machine language program obtained by a machine language language processing program, and translation is a program written in a high-level language. This is the process of using a language processing program to convert an object program into a relocatable module format or absolute address format. Usually, a language processing program outputs a list file and an object file at the final stage of its work. The list file is a file in a format that can be printed as a form in order to examine the translated results, and is stored on the disk and output at any time later. This information includes descriptive statements, machine codes, error statements, depack statements, etc. Object files, on the other hand, contain the actual machine code in relocatable or whole address format.

[Conventional technology]

When creating software that differs only in some functions as a means of standardizing source programs and object programs (hereinafter simply referred to as objects) in conventional arithmetic processing units, conditional assembling and conditional compilation are used to create The method is to specify and retranslate. An assembler is a language processing program that translates a source program written in assembly language and outputs an object program, and a compiler is a language processing program that processes an input programming language and produces the target programming language, assembly language. A language processing program that outputs machine language. Also, conditional assembly (c.

ndional assembly) is a function that adapts the assembling conditions of the same source program to changes in the hardware configuration, etc. It evaluates a certain condition, executes assembling of a certain section of the source program only if it holds, and eliminates mismatches. The same goes for 0 conditional compilation, which is skipped if . Therefore, in the conventional method described above, translation is performed as many times as the number of objects required.

The object of the present invention is to provide a data processing device that can reduce translation time, simplify source program and object management, and reduce disk usage by making it possible to create load modules.

[Problem to be solved by the invention]

However, in such conventional data processing devices, although it is possible to standardize the source program and most objects, when creating multiple load modules that differ only in part of their functions, each load module In order to obtain different objects, it is necessary to re-translate by specifying conditions using conditional assembly, etc., which requires a large amount of time to translate, increases the number of objects, and requires time and effort to manage them. It takes,
Furthermore, there is a problem that the amount of disk usage increases.

Therefore, the present invention provides that a source program can be translated only once, and then only a combination process can be performed. As shown in Figure 1, for multiple source programs each having a conditional translation section whose translation is controlled by conditional assembly or conditional compilation, the conditional translation section is translated for each source program to create a conditional object program. and a translation means a that generates a main object program by translating parts other than the conditional translation part, and the conditional object program and the main object program translated by the translation means a are combined according to a predetermined target system. the instruction means for instructing the conditions for the target system, and a combination means C for combining the conditional object program and the main object program to generate a load module corresponding to the target system based on the condition instruction from the instruction means. ing.

[Effect]

In the present invention, each source program including the condition translation unit is translated by the translation means to generate a conditional object and a main object, and then, based on the condition instruction from the instruction means, the source program is translated to correspond to a predetermined target system by the combination means. The conditional object and the main object are combined to generate a load module.

Therefore, by translating the source program once and generating the main object and conditional objects, all you need to do is perform the combination process according to the conditions (the time required to generate a load module is shorter than in the past). , management of source programs and objects is simplified, and disk usage is reduced.

(Example〕 Hereinafter, the present invention will be explained based on the drawings.

2 to 5 are diagrams showing an embodiment of a data processing device according to the present invention. Fig. 2 is a hardware configuration diagram of a data processing device.
A predetermined target system (
For example, a load module corresponding to various industrial controls, image processing, etc.) is created. Note that the information necessary for the above-mentioned translation process is taken into the internal memory of the computer main body l, and the arithmetic processing is executed by the CPU. Reference numeral 2 denotes a keyboard, which is used to input instructions for translation and combination processing into the computer main body 1. Reference numeral 3 denotes a display device, which includes, for example, a CRT, and displays the processing contents of the computer main body 1 to the outside. 4 is an auxiliary storage device that stores source programs, object programs, and load modules.

The computer main body 1 performs processing by an internal CPU according to a flowchart shown in FIG. 4, which will be described later.The specific concept of this processing is shown in FIG. 3, and will be explained first starting from FIG.

In FIG. 3, Sl-Sn are source programs necessary to generate a load module, and include conditional translation sections 1-n. Here, the conditional translation section is a code section that controls translation by conditional assembly or conditional compilation. (corresponding to
Generate Cn. Main object 1-Of~On is the translation result other than the conditional translation part, and conditional object 01
~Cn is the translation result of the condition translation unit. Also, C1-■
~Cn-n are the main objects of each of the condition translation units ① to n. is an instructing means for giving a coupling instruction, and instructs the coupling device (corresponding to the coupling means) L to specify conditions in accordance with instructions from the keyboard 2 so that the load module corresponds to a predetermined target system. The coupling device turns the main objects 01 to On based on the condition instruction from the instruction means K.
A load module LM is generated by combining necessary conditional objects 01 to Cn.

FIG. 4 is a flowchart showing a program for load module generation processing, where PL=Pn indicates each step of the program, and the left side of the figure is divided into keyboard 2 input processing, and the right side is processing performed by the CPU. There is.

First, P sends the source program S to the translation devices T1 to Tn.
Enter 1 to instruct translation. As a result, translation processing is performed at Pt, and at P, the main object 01 and the conditional object C1 are output to the coupling device. Then,
At P4, it is determined whether or not the translation of all the source programs 81 to Sn has been completed, and since the translation of the source program S1 has only been completed at first, the process returns to P and the translation of the source program 82 and subsequent ones is sequentially executed. When the translation of all the source programs 51xSn is completed, the instruction means K sends a conditional instruction to the combining device to combine the main objects 01 to On and the conditional object based on the input instruction from the keyboard 2 at P. give.

As a result, the combining device first determines whether or not there is a conditional instruction at P6, and if there is a conditional instruction, the main objects 01 to On and the conditional objects C1 to Cn corresponding to the conditional instruction are combined at P7. . On the other hand, if there is no condition instruction, only the main object (01 to On) is combined with P, and after passing through Pw or pH, the load module is output from the combining device at P9.0Then, create another load module. If so, return to ps and repeat the same process, and if not create, end the process.

Specific examples of the processing executed according to the above flowchart are shown in FIGS. 5(a) to 5(d).

What is shown in the figure is the generation process of three load modules LMI to LM3 with different functions. In particular, Figure 5(a) shows the translation process, and Figures 5(b), (C, and d) show the combination process. It shows. Further, the source program 5L=Sn is written in C language, and in the same language, ■ to n are statements processed by conditional compilation. In particular, it corresponds to the conditional translation section. For example, ■ in the conditional translation section is "A" in the source program S1.
” is translated when ■ and n are defined as rBJ and ■ rCJ is defined. Note that the translation devices T1 to Tn and the coupling device are both realized by a program running on a so-called O8.

To generate a desired load module, first, source programs Sl to Sn are translated by translation devices T1 to Tn to generate main objects 01 to On and conditional objects 01 to Cn.

At this time, the main object 01~On is the condition translation part ■~
This is the main object of the part other than n, and the conditional objects C1-■ to Cn-n are objects of the conditional translation parts 2 to n. Next, a combination process is performed. When generating a load module LMI that includes the condition translation part ■ but does not include ■, ■, and n, as shown in the link LNI in FIG.
1 to On and the condition instruction O given from the instruction means K in order to include the function of the condition translation section ■ in the load module.
Condition A is input as P to the coupling device L1. As a result, C1-■, which is the object of the condition translation section ■, is combined with the main object 01. All main objects 01
~On is combined to generate the load module LMI 0 Next, to generate the load module LM2 that includes the condition translation parts ■, ■, and n, but does not include ■, as shown in FIG. 5 (C). , the already generated main objects 01~On s and conditional objects 01~Cn
You can perform the joining process shown in link LN2 using
The link LN2 connection process uses condition B as the condition instruction OP,
C is given to the combining device L2, and the object C1-■ of the conditional translation section 2 and the object C2-2 of the conditional translation section 2 are combined with the main object to generate a load module LM2.

Furthermore, in order to generate a load module LM3 that does not include any of the condition translation units ①, ②, ②, and n, as shown in FIG. 5(d), a linking process is performed without giving a condition instruction in link LN3.

In this way, in this embodiment, once the main object and conditional object are generated by performing translation, a load module can be generated by only the linking process. Therefore, it is possible to reduce translation time, simplify the management of source programs and objects, and reduce disk usage without having to start over from translation as in conditional compilation, etc., and improve the efficiency of software development on computer systems. It greatly contributes to improvement.

Note that in the above embodiment, the source programs Sl to Sn include C.
Although this language is used, the present invention is not limited to this, and other programming languages may be used. Further, the source program may include only the conditional translation section, or may not include the conditional translation section.

Furthermore, a condition instruction OP may be written in the source program and may be employed when the condition instruction OP is not specified at the time of combination. Further, although the translation device and the combination device are provided separately, they may be integrated into one program.

FIGS. 5(a) to 5(d) are block diagrams showing specific examples of load module generation.

〔Effect of the invention〕

According to the present invention, by making the conditional translation part of the source program an object program, the target load module can be generated by only the combination process after that, only one translation is required, reducing the translation time, and Management of programs and object programs can be simplified and disk usage can be reduced.

[Brief explanation of drawings]

Figure 1 is a basic conceptual diagram of the present invention, Figures 2 to 5 are diagrams showing an embodiment of a data processing device according to the present invention, Figure 2 is a diagram of its hardware configuration, and Figure 3 is its implementation. A block diagram showing the functions, and FIG. 4 is a flowchart for generating the load module. 1...Computer body, 2...Keyboard, 3...Display device, 4... ...Auxiliary storage device, Tl"-Tn...Translation device, LSLl-L3...Coupling device, K...
means of instruction. S1~Sn... Source program, 01~On
・・・・・・Main object program, C1 to Cn・
...Conditional object program, LM, LMI NLM3...Load module, OP...Condition instruction.

Claims (1)

[Claims] a) For a plurality of source programs each having a conditional translation section whose translation is controlled by conditional assembly or conditional compilation, the conditional translation section is translated for each source program to create a conditional object program. b) for combining the conditional object program and the main object program translated by the translation means in accordance with a predetermined target system; c) a coupling means for coupling the conditional object program and the main object program to generate a load module corresponding to the target system based on the condition instruction from the instruction means; A data processing device characterized by: